package com.sky.mapper;

import com.sky.entity.SetmealDish;
import org.apache.ibatis.annotations.Delete;
import org.apache.ibatis.annotations.Select;

import java.util.List;

public interface SetmealDishMapper {
    // 根据菜品id查询是否存在关联的套餐
    // sql: select count(*) from setmeal_dish where dish_id = #{dishId}
    @Select("select count(*) from setmeal_dish where dish_id = #{dishId}")
    Integer count(Long dishId);


    //批量插入套餐菜品关系数据
    void insertBatch(List<SetmealDish> setmealDishes);

    /**
     * 根据套餐id删除套餐和菜品的关联关系
     * @param setmealId
     */
    @Delete("delete from setmeal_dish where setmeal_id = #{setmealId}")
    void deleteBySetmealId(Long setmealId);
}
